Orbit and dynamics
Between its closest point (0.913 AU) and its farthest (1.319 AU), the heliocentric distance changes by 0.406 AU over every revolution.
One full revolution takes 1.18 yr (431 days), computed from the semi-major axis of 1.116 AU.
An eccentricity of 0.182 makes the orbit moderately elongated.
Its inclination of 0.48° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 33.9 km/s at perihelion and falls to 23.5 km/s at aphelion.
Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.
Size and surface
Neither a measured diameter nor a reliable absolute magnitude is available for 2017 UJ2, so its physical size remains unconstrained.
Observation record and orbit quality
Astrometry from 27 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4631 arcseconds.
Condition code U = 5 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.
About these computed values
Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.
Orbital Parameters
Orbit diagram
The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.
3D orbit (interactive)
Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.
Close approaches
Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).
| Date (UTC) | Miss distance | Velocity |
|---|---|---|
| 2030-Mar-20 15:49 | 0.275796 AU 41258480 km |
5.88 km/s |
| 2030-Oct-29 10:29 | 0.002250 AU 336549 km |
7.35 km/s |
| 2036-May-27 06:05 | 0.100030 AU 14964334 km |
10.16 km/s |
| 2037-Jan-22 06:39 | 0.304492 AU 45551317 km |
6.42 km/s |
| 2043-Apr-05 16:32 | 0.245634 AU 36746295 km |
5.13 km/s |
| 2049-May-16 22:22 | 0.283619 AU 42428779 km |
16.02 km/s |
| 2050-Feb-14 08:48 | 0.325760 AU 48733018 km |
6.68 km/s |
| 2050-Nov-13 07:56 | 0.251277 AU 37590565 km |
16.23 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
Related Objects
Same object type
Similar orbit
Keep exploring
Explore asteroids, comets and near-Earth objects with JPL orbital data.